Sofa



FIG. 1 is a front upper perspective view of a sofa of Applicant'sdesign;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a first side elevational view thereof;

FIG. 5 is a second side elevational view thereof, the second sideelevational view being opposite the first side elevational view;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

Where included, broken lines showing environment or structure are forillustrative purposes only and form no part of the claimed design.

The appearance of any portion of the sofa between the break lines formsno part of the claimed design.

CLAIM Applicant claims the ornamental design for a sofa, as shown anddescribed.